Test concluded. Having derived Delta and E numbers from another image, I supplied this to the 41 Dra image. And arrived at a decent result.
Loaded the sample 41 Draconis BMP file into Réduc. Tagged the A and B stars. Opened the Reduction dialog. Cleared the old values. Turned on the Measure mode. Entered -1.5 for the Delta angle value; entered 0.62 for the E pixel scale value.
The values returned:
Not bad at all. The position angle is off. By about 20°... But I'm not at all surprised, given the short drift durations that I did. Trails across the entire frame should yield much more accurate results. Also I've only used a single frame. The 100+ images should be average. Seeing could have shifted the stars left or right. The separation though is impressively close.
Happy.
Now. Need to update the workflow documents...
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